Use people-first language (i.e. person with a disability vs. disabled or person of color vs. colored) unless the person indicates another preference.
gender inclusive pronouns
Never assume a person’s gender identity based on their name or their appearance – if you don’t know, use gender inclusive pronouns or ask for their pronouns
everyone vs. ladies & gentlemen
Use gender inclusive language when speaking in generalities or about groups of people that you do not know the individual pronouns of (i.e. everyone vs. ladies and gentlemen and they/them/theirs vs. he/him/his and she/her/hers).